Calcium Effects on Yield, Mineral Uptake and Terpene Components of Hydroponic Chrysanthemum coronarium L.

An experiment was conducted to study the relationship between calcium level in the hydrophonic solution on Chrysanthemum coronarium L. yield and essential oil contents. Regression analysis showed that the maximum yield was achieved in 30.9 mM of calcium in nutrient solution for leaves (r=0.970***) and 38.0 mM for flowers (r=0.950***). A highly positive correlation (r=0.961***) was found between sesquiterpene lactone and calcium in the flower part. Maximum yield of essential oil in leaf part was achieved in 39.7 mM Ca treatment (r=0.933***), and the correlation between essential oil and calcium contents of leaves was high (r=0.967***). Therefore, the increase of calcium concentration in nutrient solution had positive effects on the contents and yields of effective component, terpene, from C. coronarium L. The content of sesquiterpene lactone increased with increase of calcium concentration in nutrient solution.